There is a common conspiracy theory whose promoters claim that phones are listening to what we say secretly in order to target us with ads, and many people are convinced of this theory, because we sometimes see ads showing things we talked about a short time ago, so how true is this theory? Are phones really eavesdropping on us? In the absence of evidence to prove the validity of this To verify this, a group of technology experts at Northeastern University in 2018 conducted an experiment that included testing more than 17 thousand applications, which are among the most used applications on the Android system, the aim of the experiment was to find out whether the applications You turn on the phone’s microphone without the user’s knowledge.